LLM-Generated Coaching Prompts

ConditionExercise
Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorStanford University

About this trial

This pilot study aims to evaluate whether personalized coaching prompts generated by a large language model (LLM) can effectively increase physical activity levels among participants. The study will involve 50 participants who will receive daily text messages, either personalized by the LLM or generic, over a 14-day period. Participants will share their HealthKit data for analysis. The findings will inform the development of future versions of the My Heart Counts application, enhancing user engagement and health outcomes.

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

Age: Participants must be 18 years or older.

Health Status: Participants must be healthy enough to engage in physical activity.

Language Proficiency: Participants must be able to read, understand, and consent in English or Spanish (dependent on which is being studied).

Device Ownership: Participants must possess an iPhone and an Apple Watch.

Disqualifiers

Age: Participants under the age of 18.

Health Status: Participants who are not healthy enough to engage in physical activity.

Language Proficiency: Participants who cannot read, understand, or consent in English or Spanish.

Device Ownership: Participants who do not have both an iPhone and an Apple Watch.

Trial design

Design model

Crossover

Treatments tested in this trial

  • Pre-Generated Personalized LLM Coaching Impact

    Behavioral

    After the initial 7 days, participants will switch to the other type of prompting for another 7 days. This means that participants who initially received personalized LLM-generated prompts will then receive generic activity prompts, and vice versa. This crossover design allows for each participant to experience both types of interventions, providing a within-subject comparison of the effectiveness of personalized versus generic prompts in increasing physical activity levels.

Treatment groups

50 Participants
are divided into 2 treatment groups
Group A: Personalized LLM-Generated Coaching PromptsExperimental treatment 1 intervention
Group B: Generic Activity PromptsActive comparator 1 intervention

Trial outcomes

Primary outcomes

1

Physical Activity Levels

Time frame
14 days from enrollment

Secondary outcomes

Other outcomes

Locations

This trial has no locations.

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

This trial is not recruiting at the moment. You can still explore other options: